We use cookies to improve your online experience. By continuing browsing this website, we assume you agree our use of cookies.

HOME < Technology < TR-069 Protocol

What is TR069

Technical Report 069 (TR-069) is a technical specification of the Broadband Forum that defines an application layer protocol for remote management of customer-premises equipment (CPE) connected to an Internet Protocol (IP) network. TR-069 uses the CPE WAN Management Protocol (CWMP) which provides support functions for auto-configuration, software or firmware image management, software module management, status and performance managements, and diagnostics.

The CPE WAN Management Protocol is a bidirectional SOAP- and HTTP-based protocol, and provides the communication between a CPE and auto configuration servers (ACS). The protocol addresses the growing number of different Internet access devices such as modems, routers, gateways, as well as end-user devices which connect to the Internet.

The management server in the network management model defined by the TR069 protocol is called the automatic configuration server (ACS) and is responsible for the completion of the user per (CPE).The interface between ACS and CPE is called the southbound interface, the interface between ACS and other network management systems, business management systems, and billing systems (OSS/BSS) of the operator is called the northbound interface, and the TR069 protocol mainly defines the standard of the southbound interface. The TR069 protocol allows ACS to service a CPE or a set of CPE based on a variety of standards.

TR-069 Protocol Stack

The TR069 protocol contains some of the protocol-specific components, but also uses some standard protocols.

TR069 Protocol Stack	Instruction
CPE/ACS Application	Applied in the CPE WAN management protocol run by CPE and ACS respectively
RPC Methods	Specific RPC methods defined by CPE Wan management protocol. RPC methods include defining CPE parameters. These parameters can be accessed by ACS through the PRC method associated with the parameter
SOAP	XML-based standard syntax for coding remote procedure calls, SOAP1.1
HTTP	HTTP 1.1
SSL/TLS	Standard Internet transport layer security protocol
TCP/IP	Standard TCP/IP protocol

ACS and CPE communicate through the RPC methods of TR069 protocol

The CPE function is called by the ACS to manage the CPE

CPE Methods	Instruction
GetRPCMethods	Query the method set supported by CPE
SetParameterValues	Modify one or more parameters of CPE
GetParameterValues	Obtain the value of one or more CPE parameters
GetParameterNames	Query the accessible parameters on a CPE
SetParameterAtrributes	Modify the attributes one or more parameters of CPE
GetParameterAttributes	Ready the attributes one or more parameters of CPE
AddObject	Creates a new instance of a multi-instance object
DeleteObject	Delete a specific instance of an object
Reboot	Command CPE to restart
Download	Instruct CPE to download a specific file in the specified path
Upload	Instruct CPE to upload a specific file in the specified path
FactoryReset	Command CPE restore factory default settings

The ACS function is called by the CPE to report status information to the ACS

ACS Methods	Instruction
GetRPCMethods	This method can be used for CPE or ACS to query the method set supported by the other party.
Inform	To establish a connection with the ACS at any time, the CPE must call the Inform method to initialize a transmission sequence.
TransferComplete	This method informs the ACS that the file transfer caused by the previous Download or Upload method call has ended (whether successfully or not)